About one-third of professional mixed martial arts matches end in knockout or technical knockout, indicating a higher incidence of brain trauma than boxing or other martial arts, according to a new study in the American Journal of Sports Medicine.

Just try sugar-coating this: The World Health Organization says your daily sugar intake should be just 5 percent of your total calories — half of what the agency previously recommended, according to new draft guidelines published Wednesday.

Americans are stuck in chairs and on the couch, spending eight hours a day with their metabolic engines barely idling, according to data from sensors that scientists put on nearly 2,600 people to see what they actually did all day.

A Northern California company is recalling more than 8.7 million pounds of beef products because it processed diseased and unhealthy animals without a full federal inspection, federal officials said Saturday.